Last seen: Aug 10, 2025
This is a very interesting thread. Our ashp is being fitted soon, and we’re going onto OE cosy and using our battery to charge up to get over the peak...
@transparent I did comment but I would get an E at best since I didn’t answer all of the questions in sections 1& 3 and didn’t touch 2. My input...
@roel You also may already have a buffer which can also be called a low loss header. @johnmo put in some schematics above. You might be able to trace ...
Derek’s approach (as usual) is an excellent one. You do not need a buffer, just a volumiser. Once you understand how your system balances up then it’s...
I was thinking of your analysis but I couldn’t recall who pointed it out and hence sorry I couldn’t give you credit. Sorry! There have been other st...
@pie eater the difference you can’t see will be air leakage usually. There are many assumptions about how many air changes per hour your house has due...
Aaaaaah, that’s gas boiler thinking! and the recipe for problems with ashp. As several people are explaining better then I can, an over-sized pump wil...
The reason the other heat pumps failed may be that the houses have zones, NOT good with heat pumps, and as the pumps is big then it needs a minimum wa...
Oh dear! Don't let them change radiator for lower wattage ones! There are experts on the forum who would like to see the full proposals. Can you upl...
@pie_eater our install date is in September we’ve just had some bigger radiators changed so far, (not all rooms needed larger). it is pure BS to say...
@lucia you can’t improve the emitters to get more wattage out of a heat pump. All you can do is put an electric fire on! or wear more clothes and l...
@lucia don’t whatever you do go with a 4kW Daikin, our annual gas bill of 18000kWh means we need a 6.7kW ashp your 16000 means you need a 5.5kW (ish) ...
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RE: ASHP heat output monitoring
@tim441 Thanks, PM received and appreciated, I can't ev...
By Carlo , 6 hours ago
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RE: Flexi-Orb Heat Pump Scheme: A Game-Changer for the UK's Heat Pump Industry
I am keen to see how this unfolds and changes the lands...
By ASHP-BOBBA , 8 hours ago
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RE: Who has a V2G EV installation
General comment on battery care... I guess if ev is on ...
By Tim441 , 12 hours ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@old_scientist I have never cleaned the mag filter myse...
By Toodles , 12 hours ago
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@old_scientist like for like comparisons are almost imp...
By Tim441 , 12 hours ago
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RE: Who's your electricity provider and what's your tariff?
@old_scientist There is an option in the Tesla app that...
By Toodles , 12 hours ago
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RE: Mitsu Wireless Controller and MelCloud
On the FTC5 I think this requires the dip switch on the...
By Abernyte , 13 hours ago
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RE: Octopus Cosy & Octopus EV + bidirectional smart tariff, together. What, eh?
@old_scientist me too. Just installed my new heat pump ...
By Eliuccio , 2 days ago
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RE: Is your heat pump insured?
Yup just spoke to Privilege to inform them of my impend...
By Scalextrix , 2 days ago
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RE: Forum updates, announcements & issues
Just to keep everyone in the loop, as the site continue...
By Mars , 3 days ago
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RE: Fast DHW setting on Midea (Clivet) heat pump
@simon-w, is this something you could potentially assis...
By Mars , 3 days ago
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RE: Share Your Experiences with Heat Pump Manufacturer Support
Fwiw I called my installer out for the first time a few...
By JamesPa , 4 days ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
@sandy, I'll send Vaillant an email tomorrow and see if...
By Mars , 4 days ago
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RE: Long term efficiency degradation
@jamespa yes as I thought thanks. We have a reaso...
By Scalextrix , 4 days ago
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RE: Sunamp Thermino Heat Battery
@jamespa A few days after the installation had been com...
By Toodles , 5 days ago
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RE: Planning Permission May 2025
Fair enough. I have read the legislation and MCS020a ...
By JamesPa , 7 days ago
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RE: How do I choose a single room MVHR to prevent losing heat in my bathroom ?
An update on the Heatsava. It is the most difficult thi...
By heat-pump-newbie , 7 days ago
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RE: Renewables & Heat Pumps in the News
this document extensively describes (in a non-blame, ne...
By Judith , 1 week ago
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RE: Ecodan - Legionella Operation Time and Target Temperature
Once the white plastic cap is removed, my immersion loo...
By Old_Scientist , 1 week ago
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RE: Replacing Refrigerant on Mitsubishi Heat Pump
@dgclimatecontrol I don't know, but they were not happy...
By DavidAlgarve , 1 week ago